Orbital UAV is the world leader in spark ignited, heavy fuel propulsion systems for tactical UAVs.

Orbital UAV provides engine development, testing, validation and refurbishment services in world class facilities. With the right combination of academic qualifications and hands on experience, concept and detailed designs, prototyping and sourcing, testing and validation are executed in-house by our dedicated team.


Our customers include

Design and Development

Orbital applies a methodical and exhaustive process for engine/component/system design & development

  • Discrete phases from concept definition through to SOP
  • State of the art analysis tools
  • Design iteration through prototyping & detailed test procedures, measurement and analysis
  • Strict validation processes through all stages:
    • Concept
    • Prototype
    • Design Verification and Production Validation
  • This process has been developed and implemented over the last 10+ years on wide range of applications

Machining and Prototyping

Orbital’s in-house manufacturing capability includes:

  • Rapid in house manufacture for prototyping and production
  • Manual and numerically-controlled (NC) mills/lathes, high precision grinding & fabrication
  • Metrology lab for quality control covering all incoming and machined parts
  • Developed, world-wide, quality approved, supply base

Testing and Validation

  • Orbital applies a rigorous process developed from automotive production experience and optimised for UAV-specific requirements
  • Extensive use of numerical analysis (virtual development, not hardware development) to optimise
    • Stress
    • Heat management
    • Flow
    • Engine balance
    • Vibration
  • Design validation and production validation plans developed from FMEA and worst case operating conditions
  • Test facilities include:
    • Fully instrumented engine dynamometer facilities including durability dynamometer facilities
    • Propeller durability test stands to perform FAR 33 paragraph 49 UAV engine durability
    • Environmental dynamometers for cold start down to -35C and hot operation up to 60C
    • Altitude simulation up to 20,000f
    • Noise and Vibration Harshness (NVH) for intake and exhaust optimisation
    • Fuel injector and fuel system bench test facilities
    • Compressor test stands for flow and durability


  • Dedicated Assembly line/areas
  • Lean manufacturing methodology
  • End of line engine run-in and performance qualification testing

Servicing and Support

  • Full after-sale service, including servicing, repair and refit with full quality assurance
  • Facilities available in both Australia and USA
  • Customer on-site support
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